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Series AQ

Brass Push-In Fittings

Specifications

Alkon AQ-DOT Series meet D.O.T. FMVSS 571.106 Air Brake Performance Requirements; SAE J1131, J2494-1 & J2494-3 Air Brake Performance Requirements.

Materials of Construction

Body (straights), tube supports and grippers: Brass CA 360; Forged Elbows and Tees: Brass CA377; “O” Ring: NBR-269, alternate compounds on request.

Temperature Range

-40°F to 212°F (other ranges available upon request)

Threads

NPTF Standard. For other thread standards consult factory.

Tube “O.D.” Sizes

AQ Series - 1/8”, 5/32”, 3/16”, 1/4”, 3/8”, 1/2” AQ-DOT Series - 5/32”, 3/16”, 1/4”, 3/8”, 1/2”, 5/8”, 3/4”

MAQ Series - 4mm, 6mm, 8mm, 10mm, 12mm

Recommended Tubing

AQ & MAQ Series - Polyethylene, Polyurethane 95A Durometer and Nylon AQ-DOT Series - J844 Air Brake Tubing

Working Pressure

The fitting is suitable for use up to the maximum working pressure of the recommended plastic tubing.

AQ34/32 Barb Adapter

Part Number A B C
AQ34-B-1* 0.50 0.09 0.250
AQ34-B-2* 0.50 0.20 0.250
AQ32-B-1* 0.23 0.09 0.125

AQ52-P Union Cross

Part Number Tube O.D. A B C
AQ52-P-2 1/8 0.73 1.46 5/16
AQ52-P-5/32* 5/32 0.76 1.52 5/16
AQ52-P-4 1/4 1.05 2.10 3/8
AQ52-P-6 3/8 1.08 2.16 1/2
AQ52-P-8* 1/2 1.26 2.52 5/8

AQ54-P 45° Male Elbow

Part Number Tube O.D. Pipe A B C
AQ54-P-4X2* 1/4 1/8 0.75 3/8 0.99
AQ54-P-4X4* 1/4 1/4 0.89 3/8 0.99
AQ54-P-6X2* 3/8 1/8 0.75 1/2 0.99
AQ54-P-6X4* 3/8 1/4 0.95 1/2 1.08
AQ54-P-6X6* 3/8 3/8 0.97 1/2 1.08
AQ54-P-8X4* 1/2 1/4 1.00 5/8 1.20
AQ54-P-8X6* 1/2 3/8 1.05 5/8 1.20
AQ54-P-8X8 1/2 1/2 1.20 5/8 1.20

AQ56-P Tube To Tube Union Reducer

Part Number Tube O.D. 1 Tube O.D. 2 A B
AQ56-P-4X5/32* 1/4 5/32 1.43 7/16
AQ56-P-6X4 3/8 1/4 1.85 5/8

AQ59-P Plug

Part Number A B C
AQ59-P-2 1/8 1.12 0.35
AQ59-P-5/32 5/32 1.16 0.32
AQ59-P-4 1/4 1.40 0.43
AQ59-P-6 3/8 1.40 0.55
AQ59-P-8 1/2 1.50 0.70

AQ62-P Union Connector

Part Number Tube O.D. A B
AQ62-P-2 1/8 1.23 3/8
AQ62-P-5/32 5/32 1.34 3/8
AQ62-P-4 1/4 1.82 7/16
AQ62-P-6 3/8 1.82 21/32
AQ62-P-8 1/2 2.02 25/32

AQ64-P Union Tee

Part Number Tube O.D. A B C
AQ64-P-2 1/8 0.73 0.91 5/16
AQ64-P-5/32 5/32 0.76 0.94 5/16
AQ64-P-3 3/16 0.83 1.04 3/8
AQ64-P-4 1/4 0.94 1.17 3/8
AQ64-P-6 3/8 1.08 1.41 1/2
AQ64-P-8 1/2 1.26 1.65 5/8

AQ65-P Union Elbow

Part Number Tube O.D. A B C
AQ65-P-2 1/8 0.73 0.91 5/16
AQ65-P-5/32 5/32 0.76 0.94 5/16
AQ65-P-4 1/4 0.94 1.17 3/8
AQ65-P-6 3/8 1.08 1.41 1/2
AQ65-P-8 1/2 1.26 1.65 5/8

AQ66-P Female Connector

Part Number Tube O.D. Female Pipe A B
AQ66-P-2X2 1/8 1/8 1.04 9/16
AQ66-P-5/32X2 5/32 1/8 1.09 9/16
AQ66-P-4X2 1/4 1/8 1.33 9/16
AQ66-P-4X4 1/4 1/4 1.55 3/4
AQ66-P-6X4 3/8 1/4 1.52 3/4
AQ66-P-6X6 3/8 3/8 1.56 7/8
AQ66-P-8X8 1/2 1/2 1.85 1-1/8

AQ688-P Press-In Cartridge

Part Number Tube O.D. A B C
AQ688-P-2X00 1/8 0.67 0.47 3/8
AQ688-P-5/322X00 5/32 0.67 0.47 3/8
AQ688-P-3X00* 3/16 0.72 0.57 7/16
AQ688-P-4X00 1/4 0.95 0.69 1/2
AQ688-P-6X00 3/8 1.23 0.97 5/8

AQ68-P Male Connector

Part Number Tube O.D. Pipe A B
AQ68-P-2X0 1/8 10-32** 0.79 3/8
AQ68-P-2X1 1/8 1/16 0.76 3/8
AQ68-P-2X2 1/8 1/8 0.77 7/16
AQ68-P-5/32X0 5/32 10-32** 0.79 3/8
AQ68-P-5/32X2 5/32 1/8 0.77 7/16
AQ68-P-5/32X4 5/32 1/4 0.95 9/16
AQ68-P-3X0 3/16 10-32** 0.89 3/8
AQ68-P-3X2 3/16 1/8 1.01 7/16
AQ68-P-4X0 1/4 10-32** 0.99 7/16
AQ68-P-4X1 1/4 1/16 1.17 7/16
AQ68-P-4X2 1/4 1/8 0.98 7/16
AQ68-P-4X4 1/4 1/4 0.90 9/16
AQ68-P-4X6 1/4 3/8 0.87 11/16
AQ68-P-6X2 3/8 1/8 1.17 11/16
AQ68-P-6X4 3/8 1/4 1.15 11/16
AQ68-P-6X6 3/8 3/8 1.12 11/16
AQ68-P-6X8 3/8 1/2 1.03 7/8
AQ68-P-8X4 1/2 1/4 1.46 13/16
AQ68-P-8X6 1/2 3/8 1.28 13/16
AQ68-P-8X8 1/2 1/2 1.23 7/8

AQ699-PS Swivel Banjo Elbow

Part Number Tube O.D. Pipe A B C D
AQ699-PS-5/32X0 5/32 10-32** 0.71 0.67 5/16 0.46
AQ699-PS-5/32X2 * 5/32 1/8 0.76 1.14 1/2 0.69
AQ699-PS-4X2 * 1/4 1/8 0.95 1.14 1/2 0.69
AQ699-PS-4X4 * 1/4 1/4 0.95 1.49 5/8 0.95
AQ699-PS-4X6 * 1/4 3/8 1.08 1.67 3/4 1.09
AQ699-PS-6X4 * 3/8 1/4 0.95 1.46 5/8 1.12
AQ699-PS-6X6 * 3/8 3/8 1.08 1.67 3/4 1.31

AQ69-P Male Elbow

Part Number Tube O.D. Pipe A B C D
AQ69-P-2X2 1/8 1/8 0.77 0.69 5/16 0.87
AQ69-P-5/32X2 5/32 1/8 0.76 0.68 5/16 0.89
AQ69-P-3X2 3/16 1/8 0.83 0.71 3/8 0.92
AQ69-P-4X2 1/4 1/8 0.97 0.79 3/8 0.99
AQ69-P-4X4 1/4 1/4 1.03 0.84 3/8 1.02
AQ69-P-4X6 1/4 3/8 1.08 0.98 1/2 1.27
AQ69-P-6X2 3/8 1/8 1.03 0.80 1/2 1.12
AQ69-P-6X4 3/8 1/4 1.06 0.98 1/2 1.29
AQ69-P-6X6 3/8 3/8 1.05 0.98 1/2 1.31
AQ69-P-8X4 1/2 1/4 1.23 1.05 5/8 1.44
AQ69-P-8X6 1/2 3/8 1.23 1.05 5/8 1.44
AQ69-P-8X8 1/2 1/2 1.24 1.26 5/8 1.64

AQ69-PS SWIVEL MALE ELBOW

Part Number Tube O.D. Pipe A B C D E
AQ69-PS-2X2 1/8 1/8 0.76 0.90 7/16 1.11 3/8
AQ69-PS-5/32X0 5/32 10-32** 0.77 0.79 5/16 0.91 5/16
AQ69-PS-5/32X2 5/32 1/8 0.77 0.88 7/16 1.10 3/8
AQ69-PS-5/32X4 5/32 1/4 0.77 1.08 9/16 1.29 3/8
AQ69-PS-3X2 3/16 1/8 0.84 0.84 7/16 1.11 3/8
AQ69-PS-4X0 1/4 10-32** 0.96 0.76 5/16 1.00 3/8
AQ69-PS-4X2 1/4 1/8 0.94 0.90 7/16 1.14 3/8
AQ69-PS-4X4 1/4 1/4 1.02 1.09 9/16 1.33 3/8
AQ69-PS-4X6 1/4 3/8 1.02 1.13 11/16 1.37 3/8
AQ69-PS-6X2 3/8 1/8 1.05 1.06 7/16 1.39 1/2
AQ69-PS-6X4 3/8 1/4 1.08 1.14 9/16 1.46 1/2
AQ69-PS-6X6 3/8 3/8 1.10 1.23 11/16 1.55 1/2
AQ69-PS-6X8 3/8 1/2 1.10 1.53 7/8 1.85 1/2
AQ69-PS-8X4 1/2 1/4 1.26 1.26 9/16 1.65 5/8
AQ69-PS-8X6 1/2 3/8 1.26 1.31 11/16 1.70 5/8
AQ69-PS-8X8 1/2 1/2 1.25 1.61 7/8 2.00 5/8

AQ70-P Female Elbow

Part Number Tube O.D. Female Pipe A B C D
AQ70-P-2X2 1/8 1/8 0.78 0.82 3/8 1.04
AQ70-P-5/32X2 5/32 1/8 0.76 0.82 3/8 1.04
AQ70-P-4X2 1/4 1/8 1.02 0.83 3/8 1.06
AQ70-P-4X4 1/4 1/4 1.13 1.03 1/2 1.31
AQ70-P-6X4 3/8 1/4 1.08 0.98 1/2 1.31

AQ70-PS Swivel Female Elbow

Part Number Tube O.D. Female Pipe A B C D E
AQ70-PS-5/32X2 5/32 1/8 0.73 1.04 3/8 1.22 9/16
AQ70-PS-4X2 1/4 1/8 1.02 1.06 3/8 1.30 9/16
AQ70-PS-4X4 1/4 1/4 0.97 1.25 3/8 1.49 3/4
AQ70-PS-6X4 3/8 1/4 1.08 1.48 1/2 1.80 3/4
AQ70-PS-6X6 * 3/8 3/8 1.10 1.66 1/2 1.99 7/8
AQ70-PS-8X6 * 1/2 3/8 1.25 1.70 5/8 2.09 7/8

AQ71-P Male Run Tee

Part Number Tube O.D. Pipe A B C D E
AQ71-P-2X2 * 1/8 1/8 0.73 0.66 5/16 0.66 0.91
AQ71-P-5/32X2 5/32 1/8 0.75 0.67 5/16 0.75 0.95
AQ71-P-3X2 * 3/16 1/8 0.83 0.73 3/8 0.83 1.05
AQ71-P-4X2 1/4 1/8 1.02 0.75 3/8 1.02 1.24
AQ71-P-4X4 1/4 1/4 1.02 0.92 7/16 1.02 1.27
AQ71-P-6X2 * 3/8 1/8 1.02 0.92 1/2 1.02 1.29
AQ71-P-6X4 3/8 1/4 1.08 0.98 1/2 1.08 1.40
AQ71-P-6X6 3/8 3/8 1.08 0.98 1/2 1.08 1.31
AQ71-P-8X6 * 1/2 3/8 1.26 1.05 5/8 1.26 1.55

AQ71-PS Swivel Male Run Tee

Part Number Tube O.D. Pipe A B C D E
AQ71-PS-2X2 1/8 1/8 0.73 0.73 5/16 0.86 7/16
AQ71-PS-5/32X0 * 5/32 10-32** 0.76 0.76 5/16 0.73 5/16
AQ71-PS-5/32X2 5/32 1/8 0.76 0.76 5/16 0.82 7/16
AQ71-PS-4X2 1/4 1/8 1.02 1.02 3/8 1.01 7/16
AQ71-PS-4X4 1/4 1/4 1.02 1.02 7/16 1.08 9/16
AQ71-PS-6X2 * 3/8 1/8 1.08 1.08 1/2 1.08 7/16
AQ71-PS-6X4 3/8 1/4 1.04 1.04 1/2 1.15 9/16
AQ71-PS-6X6 3/8 3/8 1.06 1.06 1/2 1.17 11/16
AQ71-PS-8X6 * 1/2 3/8 1.24 1.24 5/8 1.28 11/16
AQ71-PS-8X8 1/2 1/2 1.24 1.24 5/8 1.28 7/8

AQ72-P Male Branch Tee

Part Number Tube O.D. Pipe A B C D
AQ72-P-2X2 * 1/8 1/8 0.73 0.66 5/16 0.84
AQ72-P-5/32X2 5/32 1/8 0.76 0.66 5/16 0.84
AQ72-P-3X2 * 3/16 1/8 0.88 0.78 3/8 1.00
AQ72-P-4X2 1/4 1/8 1.02 0.75 3/8 0.98
AQ72-P-6X2 3/8 1/8 1.08 0.80 1/2 1.13
AQ72-P-6X4 3/8 1/4 1.08 0.99 1/2 1.31
AQ72-P-6X6 3/8 3/8 1.09 0.98 1/2 1.31
AQ72-P-8X4 * 1/2 1/4 1.26 1.07 5/8 1.45
AQ72-P-8X6 * 1/2 3/8 1.26 1.07 5/8 1.45

AQ72-PS Swivel Male Branch Tee

Part Number Tube O.D. Pipe A B C D E
AQ72-PS-2X2 1/8 1/8 0.73 0.65 5/16 0.81 7/16
AQ72-PS-5/32X0 * 5/32 10-32** 0.76 0.72 5/16 0.90 5/16
AQ72-PS-5/32X2 5/32 1/8 0.78 0.82 3/8 1.00 7/16
AQ72-PS-4X2 1/4 1/8 1.02 1.04 3/8 1.28 7/16
AQ72-PS-4X4 1/4 1/4 1.01 1.23 3/8 1.47 9/16
AQ72-PS-6X2 3/8 1/8 1.08 1.07 1/2 1.40 7/16
AQ72-PS-6X4 3/8 1/4 1.06 1.17 1/2 1.50 9/16
AQ72-PS-6X6 3/8 3/8 1.08 1.21 1/2 1.54 11/16
AQ72-PS-8X6 1/2 3/8 1.26 1.31 5/8 1.70 11/16
AQ72-PS-8X8 1/2 1/2 1.26 1.61 5/8 2.00 7/8

AQ73-P Reducing Male Branch Tee

Part Number Tube O.D. 1, O.D. 2 Pipe A B C D E
AQ73-P-6X4X2 * 3/8, 1/4 1/8 1.08 0.93 1/2 0.98 1.31
AQ73-P-6X4X4 * 3/8, 1/4 1/4 1.08 1.02 1/2 0.98 1.31

AQ74-P Male/Female Branch Tee

Part Number Tube O.D. M, F Thread A B C D E
AQ74-P-4X6X4 * 3/8 1/4, 1/4 1.08 0.99 1/2 0.98 1.31

AQ75-P Tube/Barb Male Branch Tee

Part Number Tube O.D. Thread, Barb A B C D E
AQ75-P-6X4X4B * 3/8 1/4, 1/4 1.08 0.97 1/2 1.29 1.07

AQ76-P Male/Female Run Tee

Part Number Tube O.D. Female, Male A B C D E
AQ76-P-2X4X2 1/4 1/8, 1/8 0.82 0.82 7/16 1.02 1.29
AQ76-P-4X4X2 * 1/4 1/8, 1/4 0.73 0.87 7/16 1.03 1.30

AQ77-P Female Branch Tee

Part Number Tube O.D. Pipe A B C D
AQ77-P-4X2 1/4 1/8 1.02 0.82 1/2 1.11
AQ77-P-4X4 * 1/4 1/4 1.08 0.97 1/2 1.26
AQ77-P-6X4 3/8 1/4 1.09 0.98 1/2 1.31

AQ77-PS Swivel Female Branch Tee

Part Number Tube O.D. Pipe A B C D E
AQ77-PS-4X2* 1/4 1/8 1.02 1.13 3/8 1.36 9/16

AQ78-P Reducing Male Run Tee

Part Number Tube O.D. 1 Tube O.D. 2 Pipe A B C D E
AQ78-P-6X4X4 * 3/8 1/4 1/4 1.08 0.98 1/2 1.08 1.40

AQ79-P Union Reducing Tee

Part Number Tube O.D. 1 Tube O.D. 2 A B C D
AQ79-P-2X3 * 1/8 3/16 0.76 0.78 5/16 0.96
AQ79-P-4X2 * 1/4 1/8 0.98 0.90 3/8 1.16
AQ79-P-6X2 * 3/8 1/8 1.08 0.92 1/2 1.22
AQ79-P-6X5/32 * 3/8 5/32 1.06 0.98 1/2 1.11
AQ79-P-6X4 * 3/8 1/4 1.08 1.04 1/2 1.37

AQ82-P Bulkhead Union

Part Number Tube O.D. A B C D E
AQ82-P-2 * 1/8 1.28 1.12 5/8 5/8 7/16-20
AQ82-P-5/32 5/32 1.28 1.12 5/8 5/8 7/16-20
AQ82-P-3 * 3/16 1.43 1.27 11/16 11/16 1/2-20
AQ82-P-4 1/4 1.90 1.69 11/16 11/16 1/2-20
AQ82-P-6 3/8 1.85 1.69 15/16 15/16 3/14-16
AQ82-P-8 1/2 2.05 1.85 1-1/8 1-1/8 15/16-16

AQ86-P Female Bulkhead Union

Part Number Tube O.D. A B C D E
AQ86-P-4X2 1/4 1/8 1.29 11/16 1/2-20 0.63
AQ86-P-4X4 1/4 1/4 1.46 3/4 1/2-20 0.63
AQ86-P-6X4 3/8 1/4 1.81 3/4 5/8-18 0.99

AQ87-P “Y” Connector Female

Part Number Tube O.D. Pipe A B C
AQ87-P-4X4 * 1/4 1/4 1.98 1.98 3/4

AQ88-P “Y” Connector Male Npt To Dual Aq Tube Connector

Part Number Tube O.D. 1 Tube O.D. 2 Pipe A B C
AQ88-P-5/32X2 * 5/32 5/32 1/8 1.46 0.44 7/16
AQ88-P-5/32X4 * 5/32 5/32 1/4 1.64 0.44 9/16
AQ88-P-4X2 * 1/4 1/4 1/8 1.83 0.50 7/16
AQ88-P-4X4 1/4 1/4 1/4 2.01 0.50 9/16

AQ89-P “Y” Connector Triple Tube To Tube To Tube Connector

Part Number Tube O.D. 1 Tube O.D. 2 A B
AQ89-P-5/32 5/32 5/32 1.39 0.44
AQ89-P-5/32X2 * 5/32 1/8 1.37 0.44
AQ89-P-5/32X4 * 5/32 1/4 1.63 0.44
AQ89-P-4 1/4 1/4 1.36 0.50
AQ89-P-4X2 1/4 1/8 1.75 0.50

AQ90-P “Y” Connector Dual Tube With Plug-In Male Stud

Plug-in stud connects to AQ fitting of same tube O.D. and has through passage for air

Part Number Tube O.D. 1 Tube O.D. 2 Stud O.D. A B
AQ90-P-5/32 * 5/32 5/32 5/32 1.48 0.44
AQ90-P-5/32X4 * 5/32 5/32 1/4 1.70 0.44
AQ90-P-4 * 1/4 1/4 1/4 2.07 0.50
AQ90-P-4X5/32 * 1/4 1/4 5/32 1.85 0.50

AQ92-P Quick Disconnect

When tube is disconnected, flow shuts off automatically

Part Number Tube O.D. Pipe A B
AQ92-P-4X2 1/4 1/8 0.81 9/16
AQ92-P-4X4 1/4 1/4 1.03 9/16
AQ92-P-6X4 * 3/8 1/4 1.16 2.05

AQ97-P Reducing Union

For use with SERIES “AQ” Fittings only

Part Number Tube O.D. Stud O.D. A
AQ97-P-2X4 1/8 1/4 1.38
AQ97-P-5/32X4 5/32 1/4 1.44
AQ97-P-5/32X6 * 5/32 3/8 1.44
AQ97-P-4X6 1/4 3/8 1.62
AQ97-P-4X8 1/4 1/2 1.69
AQ97-P-6X8 * 3/8 1/2 1.69

AQ99-P Expander Union

For use with SERIES “AQ” Fittings only

Part Number Tube O.D. Stud O.D. A
AQ99-P-4X5/32 * 1/4 5/32 1.39
AQ99-P-6X4 3/8 1/4 1.66

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